Very good
As described
Retailer prices for 42105 are sorted by the latest lowest price.
Retailer pricesPrice history 42105
We check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.
Daily lowest price tracked across 2 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 2 Dutch retailers, 15 Dec 2025 – 24 May 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock | |
| €34,99 | Geschikt Speelgoed | In stock |
Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.
Low likelihood of further drops. Current price is near the all-time low.
42105 by the numbers: price, stock and history.
For LEGO Catamaran (42105), we track 1 retailer in the Netherlands, with 1 currently in stock. The current lowest price is €34,99. Use price history and stock data to judge whether this is a good time to buy.
Kids can recreate the thrill of boat racing with this super-cool LEGO® Technic™ (42105) Catamaran toy. For the first time ever, this LEGO Technic model toy floats on water! So, sailing enthusiasts can learn while they play. See how the sails work. Or how the dagger boards maximize stability and how the rudder steers. With the classic 2-hull catamaran design, this model boat is a fantastic recreation of the real thing.Learn how to build and sail an awesome toy boatBuild… rebuild… play… display... There’s so much for kids to discover with this LEGO engineering toy. Have fun building the Catamaran – inspired by real race boats. Then set it in the bathtub to recreate speed sailing adventures before rebuilding into a Race Power Boat. If you're looking for toy boats that really float, this set is a great choice.Unique toys and immersive building experiencesLEGO Technic sets are ideal for LEGO fans looking for a new challenge. They offer an advanced building experience for kids and adults who enjoy learning new engineering skills – or simply love to build. Take to the water with this racing Catamaran floating toy sailboat. Packed with realistic features, it includes 2 sails, 2 dagger boards and rudder. Ideal for developing engineering skills, this 2-in-1 model sailboat kit lets kids build, play and rebuild, giving an introduction to how boats really work. Master the tactics of a world-class speed-sailor. Angle the sails for the ultimate racing position. Raise and lower the 2 dagger boards to maximize stability. Then use the rudder to steer. Looking for the best gifts for a toy boat fan? This LEGO® Technic™ Catamaran (42105) is a great choice. Designed for ages 8+, it’s ideal for LEGO fans looking for a new challenge, or for anyone with a passion for sailing. At over 12” (32cm) long, 8” (22cm) wide and 17” (44cm) high (from the bottom of the rudder to the top of the mast), this model sailboat is made for easy handling in the bathtub. Who needs batteries when you've got sails? Certainly not this LEGO® Catamaran! It's powered by imagination, so no batteries are required. Get building straightaway with full instructions for the Catamaran in the box. Ready to build the Race Power Boat? You’ll find extra instructions for this online. Young LEGO® fans can discover a whole new world of building fun with LEGO Technic™ plastic model kits. With cool vehicle designs and realistic functions, the action goes on long after the model is built. LEGO® building bricks are designed to the highest industry standards. LEGOTechnic™ building kits are consistent, compatible and connect easily every time. LEGO® Technic™ pieces go through robust testing to make sure every building set meets the highest global safety and quality standards.
All about this set
Background, build experience, collector context, and buying notes in one story.
For LEGO Catamaran (42105), we track 1 retailer in the Netherlands, with 1 currently in stock. The current lowest price is €34,99. Use price history and stock data to judge whether this is a good time to buy.
Kids can recreate the thrill of boat racing with this super-cool LEGO® Technic™ (42105) Catamaran toy. For the first time ever, this LEGO Technic model toy floats on water! So, sailing enthusiasts can learn while they play. See how the sails work. Or how the dagger boards maximize stability and how the rudder steers. With the classic 2-hull catamaran design, this model boat is a fantastic recreation of the real thing.Learn how to build and sail an awesome toy boatBuild… rebuild… play… display... There’s so much for kids to discover with this LEGO engineering toy. Have fun building the Catamaran – inspired by real race boats. Then set it in the bathtub to recreate speed sailing adventures before rebuilding into a Race Power Boat. If you're looking for toy boats that really float, this set is a great choice.Unique toys and immersive building experiencesLEGO Technic sets are ideal for LEGO fans looking for a new challenge. They offer an advanced building experience for kids and adults who enjoy learning new engineering skills – or simply love to build. Take to the water with this racing Catamaran floating toy sailboat. Packed with realistic features, it includes 2 sails, 2 dagger boards and rudder. Ideal for developing engineering skills, this 2-in-1 model sailboat kit lets kids build, play and rebuild, giving an introduction to how boats really work. Master the tactics of a world-class speed-sailor. Angle the sails for the ultimate racing position. Raise and lower the 2 dagger boards to maximize stability. Then use the rudder to steer. Looking for the best gifts for a toy boat fan? This LEGO® Technic™ Catamaran (42105) is a great choice. Designed for ages 8+, it’s ideal for LEGO fans looking for a new challenge, or for anyone with a passion for sailing. At over 12” (32cm) long, 8” (22cm) wide and 17” (44cm) high (from the bottom of the rudder to the top of the mast), this model sailboat is made for easy handling in the bathtub. Who needs batteries when you've got sails? Certainly not this LEGO® Catamaran! It's powered by imagination, so no batteries are required. Get building straightaway with full instructions for the Catamaran in the box. Ready to build the Race Power Boat? You’ll find extra instructions for this online. Young LEGO® fans can discover a whole new world of building fun with LEGO Technic™ plastic model kits. With cool vehicle designs and realistic functions, the action goes on long after the model is built. LEGO® building bricks are designed to the highest industry standards. LEGOTechnic™ building kits are consistent, compatible and connect easily every time. LEGO® Technic™ pieces go through robust testing to make sure every building set meets the highest global safety and quality standards.
The current lowest price is €34,99 across 1 tracked retailers.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Technic Pins
Technic Pin with Friction Ridges Lengthwise and Center Slots
Part ID 2780 · Black
Qty 47
Technic Axle Pin with Friction Ridges Lengthwise
Part ID 43093 · Blue
Qty 33
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots
Part ID 6558 · Blue
Qty 17
Technic Pin with Friction Ridges Lengthwise and Towball
Part ID 6628 · Black
Qty 14
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]
Part ID 32054 · Light Bluish Gray
Qty 8
Technic Axle Towball
Part ID 2736 · Light Bluish Gray
Qty 3
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle
Part ID 11214 · Red
Qty 2
Technic Axle Pin without Friction Ridges Lengthwise
Part ID 3749 · Tan
Qty 1
Technic Pin 1/2
Part ID 4274 · Light Bluish Gray
Qty 1
Technic Axles
Technic Axle 2 Notched
Part ID 32062 · Red
Qty 15
Technic Axle 3
Part ID 4519 · Light Bluish Gray
Qty 9
Technic Axle 3 with Stop
Part ID 24316 · Reddish Brown
Qty 8
Technic Axle 4
Part ID 3705 · Red
Qty 8
Technic Axle 4 with Stop
Part ID 87083 · Dark Bluish Gray
Qty 5
Technic Axle 5 with Stop
Part ID 15462 · Reddish Brown
Qty 4
Technic Axle 10
Part ID 3737 · Black
Qty 3
Technic Axle 11
Part ID 23948 · Yellow
Qty 2
Technic Axle 6
Part ID 3706 · Black
Qty 2
Technic Axle 7
Part ID 44294 · Yellow
Qty 2
Technic Axle 9
Part ID 60485 · Light Bluish Gray
Qty 1
Technic Beams
Technic Beam 1 x 3 Thin
Part ID 6632 · Dark Bluish Gray
Qty 12
Technic Beam 3 x 3 L-Shape Thin
Part ID 32056 · Dark Bluish Gray
Qty 8
Technic Beam 1 x 15 Thick
Part ID 32278 · Dark Bluish Gray
Qty 7
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole
Part ID 60483 · Black
Qty 7
Technic Beam 1 x 3 Thin
Part ID 6632 · White
Qty 6
Technic Beam 1 x 7 Thick
Part ID 32524 · Dark Bluish Gray
Qty 4
Technic Beam 1 x 5 Thick
Part ID 32316 · Dark Bluish Gray
Qty 3
Technic Beam 3 x 3 T-Shape Thick
Part ID 60484 · Dark Bluish Gray
Qty 3
Technic Beam 2 x 4 L-Shape Thick
Part ID 32140 · Lime
Qty 2
Technic Beam 1 x 15 Thick
Part ID 32278 · Lime
Qty 2
Technic Beam 1 x 5 Thick
Part ID 32316 · Lime
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · White
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · Lime
Qty 2
Technic Beam 1 x 11 Thick
Part ID 32525 · Lime
Qty 2
Technic Beam 1 x 9 Thick
Part ID 40490 · White
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · Dark Bluish Gray
Qty 1
Technic Beam 1 x 11 Thick
Part ID 32525 · Dark Bluish Gray
Qty 1
Technic Beam 1 x 13 Thick
Part ID 41239 · Dark Bluish Gray
Qty 1
Technic Connectors
Technic Axle Connector Smooth [with x Hole + Orientation]
Part ID 59443 · Dark Bluish Gray
Qty 10
Technic Axle Connector with Axle Hole [Reinforced]
Part ID 42135 · Black
Qty 9
Technic Axle and Pin Connector Perpendicular
Part ID 6536 · White
Qty 8
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise
Part ID 15100 · Dark Bluish Gray
Qty 7
Technic Axle and Pin Connector Angled #2 - 180°
Part ID 32034 · Dark Bluish Gray
Qty 7
Technic Driving Ring Connector
Part ID 18948 · White
Qty 6
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes
Part ID 42003 · Orange
Qty 6
Technic Axle and Pin Connector Angled #1
Part ID 32013 · Dark Bluish Gray
Qty 4
Technic Axle and Pin Connector Perpendicular Double
Part ID 32291 · Light Bluish Gray
Qty 4
Technic Axle and Pin Connector Perpendicular Double Split
Part ID 41678 · Light Bluish Gray
Qty 4
Technic Axle and Pin Connector Angled #6 - 90°
Part ID 32014 · Dark Bluish Gray
Qty 2
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole
Part ID 32184 · Dark Bluish Gray
Qty 2
Technic Pin Connector Round 1L [Beam]
Part ID 18654 · Light Bluish Gray
Qty 1
Technic Pin Connector Hub with 1 Axle
Part ID 22961 · Light Bluish Gray
Qty 1
Technic Pin Connector Hub with 2 Axles
Part ID 27940 · Dark Bluish Gray
Qty 1
Technic Pin Connector Hub Perpendicular 3L with 4 Pins
Part ID 48989 · Light Bluish Gray
Qty 1
Technic Bushes
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Part ID 32123b · Light Bluish Gray
Qty 5
Technic Bush
Part ID 3713 · Light Bluish Gray
Qty 1
Technic Beams Special
Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced
Part ID 33299b · Black
Qty 5
Technic Beam 5 x 11 with 3 x 5 Opening Frame Thick
Part ID 64178 · Light Bluish Gray
Qty 1
Technic Steering, Suspension and Engine
Technic Link 1 x 9
Part ID 32293 · Black
Qty 4
Technic Special
Technic Rotor Blade Small with Hole and Axle Connector End
Part ID 99012 · Dark Bluish Gray
Qty 4
Technic Panels
Technic Panel Fairing #21 5L Small Smooth, Side B
Part ID 11946 · Black
Qty 3
Technic Panel Fairing #22 5L Small Smooth, Side A
Part ID 11947 · Black
Qty 3
Technic Panel Fairing #21 5L Small Smooth, Side B
Part ID 11946 · Lime
Qty 2
Technic Panel Fairing #22 5L Small Smooth, Side A
Part ID 11947 · Lime
Qty 2
Technic Gears
Technic Gear 12 Tooth Double Bevel
Part ID 32270 · Black
Qty 3
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]
Part ID 18575 · Tan
Qty 2
Technic Worm Gear Short
Part ID 27938 · Dark Bluish Gray
Qty 2
Technic Gear Rack 1 x 13 with Axle and Pin Holes
Part ID 64781 · Black
Qty 2
Transportation - Land
Steering Wheel Small, 2 x 2 [Reinforced]
Part ID 16091 · Black
Qty 2
Transportation - Sea and Air
Plates Round Curved and Dishes
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Green
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Red
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Clear
Qty 1
Retailer reviews
Summarized retailer review data when available.
As described
Even if it's a gift for a 43-year-old, it's still a big success!
My grandson (11 years old) was very happy with this beautiful building set! He started building it right away. We first sorted all the small pieces so he could easily find the right ones. The instructions are very clear with pictures, but he occasionally needed help from my friend (who also wanted to help with this beautiful design). He worked on it for a while, but it went quite smoothly. It's a beautiful model, and my grandson immediately tested it in the bathtub ;-) Later, he took it to the pond where it floated nicely, which was fun to see the sails "work". He wants to convert it into a speedboat. I'm going to buy another one so he doesn't have to take the catamaran apart, and that way he'll have double the fun.
The LEGO Technic Catamaran set is a beautiful set that, as you would expect from LEGO, is technically and very well made. As soon as the set arrived, we started building it. The set does require some technical knowledge, as it can be difficult for a child younger than the recommended age to assemble it. Our 9-year-old daughter was unable to assemble the set without help. Our 11-year-old son had less difficulty and quickly assembled the speedboat. You can assemble the catamaran using the included instructions. You can download the instructions for the speedboat via the LEGO app on your phone, which you can install via a QR code in the instructions. The instructions for the speedboat can also be found on the LEGO website. Building the catamaran is a task that takes time, but thanks to the clear instructions, it is quite easy. It is also very fun that the catamaran and speedboat stay afloat well. Of course, our children have thoroughly tested this in the bathtub. The attachment of the catamaran's sail is not very strong. I am afraid that it will break quite quickly. So far, our children are very happy with the set and it is guaranteed for many hours of playing, building, and sailing fun!
I bought this set for my 10-year-old son. He is really into boats and LEGO. It was a big surprise for him when he opened the box. It was also his first technical LEGO set. The set is, as expected from LEGO, very sturdy. The instructions were easy for him to follow. It's also great to see how LEGO adds moving elements to the set. A big plus for this set is that it can float. He has already spent many hours in the pool with it. It's also nice to see how moving the rudders increases the stability. Educational!
Our 7-year-old son was thrilled with this set! And although it was sometimes a bit challenging for him to get the technical aspects completely right, he finished it within a day. The catamaran is very large, with great, sturdy sails. There are Technic LEGO handles to operate the sails, turn the rudder, and lower the legs underneath the boat for extra stability in the water. The whole set feels a bit "wobbly", but he needs this for the waves when you put it in the water. We of course also tested this, and even in quite a bit of wind, the catamaran remained perfectly stable in the water. Highly recommended!
All retailer prices
Current prices, stock and discounts per retailer.
Price context
Lowest, highest and average price for this set.
This context is based on 126 price points across 1 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The chance of a further drop is low. The current price is near the lowest measurement.
FAQ & set details
Pieces, year, RRP and retailer coverage.
Quick answers about price, stock and set data.